Hover Input Audio Feedback for Touch Interface Safety
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Solution Overview
Problem
Existing user interfaces for operating transportation-based touch-sensitive units, such as those used in vehicles, face challenges in providing effective feedback during hovering operations, especially when driving on uneven roads, leading to unintentional movements and reduced road safety due to the need for visual confirmation of input actions.
Innovation Solution
A method and user interface that utilize audio feedback to acknowledge the presence and movement of an input means, such as a finger, in predefined areas in front of the operating unit without physical contact, allowing users to maintain focus on the road while interacting with the interface, using distinct audio signals for different actions and areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual feedback is used to confirm hovering input actions, then input precision is improved, but driver attention is diverted from the road
Solution Approach 1:
The patent replaces visual feedback mechanisms with acoustic feedback mechanisms. Instead of requiring the driver to visually confirm hovering actions on the touch screen, the system uses sound signals to indicate when a hover action has been detected and executed. This substitution allows the driver to maintain visual attention on the road while still receiving confirmation of input actions through auditory channels.
2Object-generated harmful factors
If touch-sensitive screens are used without physical contact (hovering), then device cleanliness is improved, but user feedback clarity deteriorates
Solution Approach 1:
The patent implements an acoustic feedback system that provides immediate auditory confirmation when a hovering input action is detected. The system generates sound signals that clearly indicate to the user when their hover gesture has been registered and executed. This feedback mechanism compensates for the lack of tactile confirmation inherent in contactless hovering operations, ensuring users receive clear information about their input actions without making physical contact with the screen.
3Ease of operation
If hovering detection area is extended beyond the screen surface, then ease of operation is improved, but unintentional activation increases
Solution Approach 1:
The patent implements different acoustic feedback characteristics for different spatial zones within the hovering detection area. By providing distinct sound signals for different regions (e.g., different tones, volumes, or patterns for different areas around the screen), the system enables users to intuitively understand which specific area they are hovering over. This local differentiation helps prevent unintentional activation by providing clear spatial feedback that guides precise hovering control.
Data Source
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AI summary
Systems, apparatuses and methods for assisting a user in the operation of a touch-sensitive operator control unit, where a presence of input means, such as a user's finger, is detected in a predefined first area in front of the operator control unit, and, in response to it, acknowledging of the detected presence by a predefined first audio output. The first area may be bounded in a direction parallel to a surface of the operator control unit corresponding to a button displayed on the operator control unit. The crossover of the input means from the first area into a predefined second area in front of the operator's control unit may also be detected and acknowledged by a predefined second audio output. Also, a predefined pattern of movement of the input means in the first area may be detected and acknowledged via audio or visual indicia.